Executive summary
Public evidence documents CVE-2025-55177. This report does not assess any organization.
Technical analysis
Meta Platforms WhatsApp contains an incorrect authorization vulnerability due to an incomplete authorization of linked device synchronization messages. This vulnerability could allow an unrelated user to trigger processing of content from an arbitrary URL on a target’s device.
Evidence and sources
Public evidence for CVE-2025-55177 with preserved provenance.
CVE-2025-55177 Meta Platforms WhatsApp Incorrect Authorization Vulnerability Meta Platforms WhatsApp contains an incorrect authorization vulnerability due to an incomplete authorization of linked device synchronization messages. This vulnerability could allow an unrelated user to trigger processing of content from an arbitrary URL on a target’s device.
IOCs
No public IOC is available.
CVEs and affected products
Meta Platforms WhatsApp Incorrect Authorization Vulnerability
ATT&CK mapping
No ATT&CK mapping is available.
Detection content
Sigma rules, YARA rules, Splunk SPL, and KQL detection logic.
Threat hunting
Hypothesis-driven hunt procedures and telemetry checklist.
Remediation
Containment actions, patching notes, and credential steps.
Historical relationships
No published historical relationship is available.
Timeline and change history
Confidence and caveats
1.0
⚠️ Public CTI only; no organizational exposure is asserted.
⚠️ CVSS and EPSS metadata were not present in the retrieved evidence payload.